The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Nicole Kidman is scared of butterflies.
65
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Sharks have been on the planet longer than trees.
14